Conversion between CString, int, string, char*

1 conversion between the cstring,int,string,char*

String Turn CString

Cstring.format ("%s", String.c_str ());

Char turn CString

Cstring.format ("%s", char*);

Char Turn string

string S (char *);

String char *

Char *p = STRING.C_STR ();

CString turn std::string

CString str = dlg. GetPathName (); SetLocale (Lc_all, "CHS");

Char *p = new char[256];

Wcstombs (P, str, 256);

M_filename = p;

1,string-> CString cstring.format ("%s", String.c_str ()); it's better than data () with C_STR (). 2,char-> String

string S (char *);

Your can only initialize, in the place that does not initialize is best still use assign (). 3,cstring-> String String s (Cstring.getbuffer ()); GetBuffer () must be releasebuffer (), otherwise there is no space to free the buffer.

In the C + + standard library of functions.

There are three functions that can convert the contents of a string into character arrays and c-string

1.data (), returns a string array 2,c_str () without "", returns a string array with "" 3,copy ()

CString Cross int

Converts a character to an integer, and you can use Atoi, _atoi64, or ATOL.

To convert a number to a CString variable, you can use the CString format function. Such as

CString s;

int i = 64;

S.format ("%d", i) the Format function is very powerful and worth studying.

void Cstrdlg::onbutton1 ()

{

Todo:add your control notification handler code here

CString

Ss= "1212.12";

int Temp=atoi (ss);

CString AA;

Aa. Format ("%d", temp);

AfxMessageBox ("var is" + AA);

}

Sart. Format ("%s", buf);

CString Mutual Turn char*

char * to CString

CString strtest;

char * CHARPOINT;

Charpoint= "Give string a value";

Strtest=charpoint;

CString to char *

Charpoint=strtest. GetBuffer (strtest. GetLength ());

There is no String,char *==char in standard C []==string

You can use the Cstring.format ("%s", char *) method to turn char * to CString. To convert the CString to char *, use the operator (LPCSTR) to CString it.

CString conversion char[100]

Char a[100];

CString Str ("aaaaaa");

strncpy (A, (LPCTSTR) str,sizeof (a));

2 conversion of CString type to int

Convert CString type to int

Converts a character to an integer, and you can use Atoi, _atoi64, or ATOL.

CString AAA = "16";

int int_chage = Atoi ((LPCSTR) AAA);

To convert a number to a CString variable, you can use the CString format function. Such as

CString s;

int i = 64;

S.format ("%d", i) the Format function is very powerful and worth studying.

If you are using a char array, you can also use the sprintf function.

CString ss= "1212.12";

int Temp=atoi (ss);

CString AA;

Aa. Format ("%d", temp);

Digital-> strings are Cstring::format, FORMATV, sprintf and AFX Itoa

3 char* in the loading int

#include <stdlib.h>

int atoi (const char *nptr);

Long Atol (const char *nptr);

Long Long Atoll (const char *nptr);

Long Long Atoq (const char *nptr);

4 Conversion between the cstring,int,string,char*

String AA ("AAA");

Char *c=aa.c_str ();

Cannot convert from ' const char * ' to ' char * '

const char *C=AA.C_STR ();

The conversion between 5 cstring,int,string,char* string.c_str () can only be converted to const char *,

To convert to char * This writes:

String Mngname;

Char t[200]; memset (t,0,200); strcpy (T,mngname.c_str ());